Hair treatment dispensing unit



FIG. 1 is a perspective view of a hair treatment dispensing unit showingmy new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 top plan view thereof;

FIG. 4 is a front elevation thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevation thereof; and,

FIG. 7 is a bottom plan view thereof, shown fragmentarily forconvenience of illustration.

The ornamental design for a hair treatment dispensing unit, as shown and described. 